/*
 Copyright (C) 2010 Kristian Duske

 This file is part of TrenchBroom.

 TrenchBroom is free software: you can redistribute it and/or modify
 it under the terms of the GNU General Public License as published by
 the Free Software Foundation, either version 3 of the License, or
 (at your option) any later version.

 TrenchBroom is distributed in the hope that it will be useful,
 but WITHOUT ANY WARRANTY; without even the implied warranty of
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 GNU General Public License for more details.

 You should have received a copy of the GNU General Public License
 along with TrenchBroom. If not, see <http://www.gnu.org/licenses/>.
 */

#pragma once

#include <QWidget>

#include <vector>

class QColor;

namespace tb::ui
{

class ColorTable : public QWidget
{
  Q_OBJECT
private:
  int m_cellSize;
  int m_cellSpacing = 2;
  std::vector<QColor> m_colors;
  std::vector<QColor> m_selectedColors;

public:
  explicit ColorTable(int cellSize, QWidget* parent = nullptr);

  void setColors(const std::vector<QColor>& colors);
  void setSelection(const std::vector<QColor>& colors);

protected: // QWidget overrides
  void paintEvent(QPaintEvent* event) override;
  void mouseReleaseEvent(QMouseEvent* event) override;

public: // QWidget overrides
  bool hasHeightForWidth() const override;
  int heightForWidth(int w) const override;

private:
  int computeCols(int width) const;
  int computeRows(int cols) const;
  int computeHeight(int rows) const;

signals:
  void colorTableSelected(QColor color);
};

} // namespace tb::ui
